A proxy can be valid.Logical formLearned from56 sentences. A currency can be valid.Logical formLearned from56 sentences. Arguments can be valid.Logical formLearned from56 sentences. A study can be valid.Logical formLearned from56 sentences. An act can be valid.Logical formLearned from56 sentences. A list can be valid.Logical formLearned from56 sentences. A sampling can be valid.Logical formLearned from55 sentences. A scientific evidence can be valid.Logical formLearned from55 sentences. Scores can be valid.Logical formLearned from55 sentences. Permits can be valid.Logical formLearned from55 sentences. Ideas can be valid.Logical formLearned from55 sentences. A value can be valid.Logical formLearned from55 sentences. A link can be valid.Logical formLearned from54 sentences. A claim can be valid.Logical formLearned from54 sentences. (Business reasons) can be valid.Logical formLearned from54 sentences.